>inb4 because she's not a trainer
Lots of non trainer NPCs have Pokemons.
>>32189264
i really really like this picture of Lillie. can i save it?
>>32189264
Cause she's stupid.
>>32189264
She spent all her money on Max repels and didn't have any pokeballs. She also realized she is incompetent and would be unable to properly take care of Nebby. And of course, she just smells awful, and didn't want to put Nebby through that.
i guess what with her crazy-ass mother keeping pokemon frozen she would have a bit of a complex about keeping them confined
that doesn't stop her from forcing nebby into her bag though
so to answer your question, i don't know
Because her mother is a lot hotter
>>32189264
There are two possible reasons why she didn't. First is how her mother treated Pokemon left her scarred. Bringing in Pokemon, keeping them confined, experimenting on them and freezing them alive. A kid not even 10 year old being exposed to this isn't exactly going to be ecstatic about the idea of confining a Pokemon in a Ball. That's the same reason she didn't like Pokemon battles. She's seen enough Pokemon being hurt.
The second reason could be that Nebby didn't want to be caught, or for whatever reason, it simply wasn't possible. Lusamine also hadn't caught Nebby. Keeping it stored would be easier in a Ball, but considering Lusamine didn't, it's likely it wasn't possible. Might have to do with Nebby being an Ultra Beast, or maybe just always breaking free of Balls. Whatever the reason, it's likely that catching Nebby simply wasn't possible. Even if it was possible, if Nebby didn't want to be caught, Lillie wouldn't catch Nebby. She didn't want to force Nebby into anything.
So either or both of these reasons.